Search found 158 matches

by Guppy
Tue Sep 15, 2020 5:02 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Palomena prasina eggs and the hatched nymphs
Replies: 14
Views: 1024

Re: Palomena prasina eggs and the hatched nymphs

The nymphs on their empty egg shells.
Nikon105mm with bellows at 2:1,
87 single images, stack steps of 30 µm.

Image

Kurt
by Guppy
Mon Sep 14, 2020 4:55 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Palomena prasina eggs and the hatched nymphs
Replies: 14
Views: 1024

Re: Palomena prasina eggs

Thank you very much for the interesting films, they complement my picture series very well.

The next picture with the Zeiss Luminar 16mm, at 9:1, shows the eggs shortly before hatching.
339 images, stack step size 3.5 µm, object side image width 2.6mm.

Image

Kurt
by Guppy
Sun Sep 13, 2020 3:13 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Palomena prasina eggs and the hatched nymphs
Replies: 14
Views: 1024

Re: Palomena prasina eggs

The Laowa 25mm F 2.8, 2.5-5X Ultra Macro is a very good lens that is also suitable for full format. Image scale from 2.5:1 to about 7:1 (with extension rings). Enclosed is a picture taken with the ZEISS Luminar 25mm at 6:1 showing the fresh eggs from above. 202 images, stack step size 7.5µm, object ...
by Guppy
Sat Sep 12, 2020 9:17 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Palomena prasina eggs and the hatched nymphs
Replies: 14
Views: 1024

Palomena prasina eggs and the hatched nymphs

I suppose everyone knows the green stink bug, here its eggs. https://up.picr.de/39421609dj.jpg http://files.homepagemodules.de/b649264/f7t3623p27703n2_ZMVwkilQ.jpg Kamera: Nikon D810 Objektiv: Laowa 25mm F 2.8, 2.5-5X Ultra Macro Belichtungszeit: Blitz Blende: 2.8 ISO: 64 Beleuchtung: 3 Blitzgeräte ...
by Guppy
Mon Sep 07, 2020 6:37 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Small hymenoptera
Replies: 0
Views: 805

Small hymenoptera

Hi There is a very large selection of small flying insect species. In the vernacular they are often called mosquitoes, even if they do not bite. Body length 7 mm. Here a specimen with 7mm body length, which I found dead on a leaf, on the abdomen there were already mushroom threads visible. https://u...
by Guppy
Fri Aug 14, 2020 6:34 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Polypodium vulgare
Replies: 15
Views: 2065

Re: Polypodium vulgare

" spore size varies with the treatment, especially the mounting medium." I measure the fresh untreated spores. I have now measured fresh spores from another part of the leaf with a maximum length of 95µm (P. interjectum). So basal cells 2-3 and maximum length of spores 95 µm, two factors indicate P...
by Guppy
Fri Aug 14, 2020 5:04 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Polypodium vulgare
Replies: 15
Views: 2065

Re: Polypodium vulgare

I hope I'm understanding this correctly.
1 - 2 basal cells = P. vulgare
2 - 5 basal cells = P. interjectum
Since on my picture 2 and also 3 basal cells are visible, it is probably P. interjectum!
But the maximum spore length is 77µm, which indicates P. vulgare?

Thanks a lot
Kurt
by Guppy
Fri Aug 14, 2020 2:00 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Polypodium vulgare
Replies: 15
Views: 2065

Re: Polypodium vulgare

Can you determine the species with this picture?

Image

thanks a lot
Kurt
by Guppy
Thu Aug 13, 2020 1:59 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Polypodium vulgare
Replies: 15
Views: 2065

Re: Polypodium vulgare

Many thanks for the correction.
"the thin skin, the Indusium (veil) falls off during the ripening."
Sorry, it's my fault.
Polypodium vulgare is the appointment of a gardener, (probably quick and dirty?).

Kurt
by Guppy
Wed Aug 12, 2020 8:43 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Polypodium vulgare
Replies: 15
Views: 2065

Re: Polypodium vulgare

Hi Lothar I use the Laowa 25mm F 2.8, 2.5-5X Ultra Macro on the Nikon bellows PB-6, here at 7:1 with the minimum extension of 50mm. Image scale / approx. resolution of the object 3:1 / 320 LP/mm 4:1 / 380 LP/mm 5:1 / 450 LP/mm 6:1 / 490 LP/mm 7:1 / 530 LP/mm 8:1 / 550 LP/mm 10:1 / 560 LP/mm Up to 7:...
by Guppy
Wed Aug 12, 2020 5:30 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Polypodium vulgare
Replies: 15
Views: 2065

Re: Polypodium vulgare

Hi Pau
The white balance is a bit too blue, I love it. :wink:
I was not sure if they are really trichomes and if they are called that in the fern.

Thanks a lot

Kurt
by Guppy
Tue Aug 11, 2020 6:27 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Polypodium vulgare
Replies: 15
Views: 2065

Polypodium vulgare

Hi A sorus is a collection of sporangia (spore containers) on the underside of the ferns' leaves. Here at the angelsweet (German), the thin skin, the Indusium (veil) falls off during the ripening. In many fern species the cracked skin remains as disturbing shreds and does not allow a view of all spo...
by Guppy
Tue Jul 07, 2020 7:02 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Robber Fly
Replies: 2
Views: 1210

Robber Fly

Hi A little bit robber fly https://up.picr.de/38955848nk.jpg http://files.homepagemodules.de/b649264/f7t3686p27971n2_tJTfUcLY.jpg Kamera: Nikon D810 Objektiv: Rodenstock APO Rodagon N 1:2.8, f = 50mm (in retro) Belichtungszeit: Blitz Blende: 3.4 ISO: 64 Beleuchtung: 4 Blitzgeräte Diffusor: Weisser P...
by Guppy
Mon Jul 06, 2020 7:51 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Metallic Beetle
Replies: 2
Views: 1093

Re: Metallic Beetle

i like it, beautiful colour and detail.

Kurt
by Guppy
Sun Jul 05, 2020 4:25 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Tabanus bromius
Replies: 0
Views: 1471

Tabanus bromius

She wanted unconditionally to the internet She died of a beat while eating. https://up.picr.de/38937064qn.jpg http://files.homepagemodules.de/b649264/f7t3677p27942n2_cUxihlCB.jpg Kamera: Nikon D810 Objektiv: Rodenstock APO Rodagon 1:2.8, f = 50mm (in Retro) Belichtungszeit: Blitz Blende: 4 ISO: 64 B...